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RE: [PSUBS-MAILIST] WD 40 compensating oil



Alan,
 
Here's another option. I'm running WD40 now, but prior to that I had Marvel Mystery Oil in the thrusters for years without any issue. I did just the test you did with the Marvel Mystery Oil before installing it, leaving snipped pieces of cable from the motors in a jar of it for a time to see if the insulation degraded. It didn't. Also, I found it had virtually no electrical conductivity both before and after the test. Since the stuff is intended as a gasoline additive I figured it would be good for keeping things clean, and it has extremely low viscosity.
 
thanks,

Alec
 


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From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Alan James
Sent: Tuesday, September 29, 2009 5:56 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] WD 40 compensating oil

Hi Emile,
Firstly congratulations on the sub,
great work, must have caused a lot of interest to the local residents.
  A vial is just a name for a small cylindrical tube. In this case it was
plastic, with a plastic cap on top.
Maybe the plastics in electric motors are  more resistant to the WD 40.
I'm in the process of oil compensating a linear actuator ( electronic piston )
Wich involves encasing the unit in fiberglass. There are a lot of small plastic
components including 2 micro switches wich I can't pot in epoxy, so now
after looking at what the WD 40 did to the plastic container after about 3 months
I'm looking for another oil.
I'll have a look at the DOT 5 brake fluid & see what it does to plastic, 
Thanks Alan 
 
----- Original Message -----
From: Emile van Essen
To: personal_submersibles@psubs.org
Sent: Wednesday, September 30, 2009 9:53 AM
Subject: RE: [PSUBS-MAILIST] WD 40 compensating oil

Alan,

 

What is a vail?  One way plastic bottle? Till now I have good result with WD40 and plastics.

 

New material:

Somebody ever considered Silicone DOT 5 brake fluid as used on motorbikes? Yes, DOT4 is aggressive for paint etc. DOT 5 not and is thin as water.

First drawback is that it is expensive..

 

Emile

 

 

 


Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens Alan James
Verzonden: maandag 28 september 2009 1:01
Aan: personal_submersibles@psubs.org
Onderwerp: [PSUBS-MAILIST] WD 40 compensating oil

 

Hi all,

I was experimenting with various organic oils & WD 40

for oil compensating my motors & linear actuators.

I had a number of differant oils in small plastic vials

& was mixing them with water to see how it separated out.

Just found that after a couple of months the vial with the

WD 40 in it went soft, cracked & leaked. Can't tell you

what the plastic was but its got me looking for alternatives.

Alan